Setting CSS3 properties using
JavaScriptWith the numerous CSS vendor prefixes one has to contend with
when it comes to defining CSS3 properties such as -moz-box-shadow
or -webkit-border-radius, setting them in JavaScript can be even
more confusing. This tutorial looks at how to how to streamline the setting of
CSS3 property values in JavaScript, by checking for and targeting only the
version of a CSS3 property the browser supports.

The onmousewheel event of
JavaScriptThe onmousewheel event fires whenever the user
moves the mouse wheel either upwards or downwards, and can provide
yet another way for users to interact with your JavaScript. In this
tutorial, lets see how to take advantage of onmousewheel
across browsers.

Dynamically loading an external
JavaScript or CSS file
External JavaScript or CSS files do not always have to be
synchronously loaded as part of the page, but dynamically as well.
In this tutorial, we'll see how to load, remove, and replace
external JavaScript and CSS files on demand and asynchronously. It
the era of Ajax, it's a handy thing to know.

JavaScript
and memory leaks
If you're not careful, your JavaScript code may leak memory and
sometimes even bring the visitor's browser to its knees. This
tutorial looks at different leak patterns in JavaScript and how to
fix them.

Conditional
Compilation of JScript/ JavaScript in IE
IE supports a little known feature called conditional compilation
that selectively compiles any block of JScript or JavaScript
depending on your script logic. Think of it as the absolute form of
object detection.

External
JavaScript and PHP
External JavaScript can reference not just
.js files, but PHP scripts as well. See how this is done, and the
wonderful possibilities linking PHP to JavaScript bring.

Changing
Select element content on the fly
This tutorial explains how to change a select
element's content using JavaScript, from adding new options to
modifying and deleting them. It also shows how to create a 2 level
interdependent select list.

Determining cookie support in client's browser
If your script relies on JavaScript cookies to store and persist information, it's
a good idea to always first make sure the user's browser has cookies enabled. This tutorial shows you how to perform this detection.

Introductory
Guide to Regular Expressions
Always wanted to learn about Regular
Expressions in JavaScript? With this comprehensive yet gentle
tutorial on the subject, you'll be on your way to slashing and
validating string input using Regular Expressions in no time!

JavaScript
and Object Oriented Programming (OOP)
JavaScript may not be known for its
object oriented properties, but it does support most of the features
required to be considered an Object Oriented language. See how to
write OOP code in JavaScript.